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Inclusive b-jet production in pp collisions at √s = 7 TeV

Chatrchyan, S ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1007/JHEP04(2012)084
  3. Publisher: 2012
  4. Abstract:
  5. The inclusive b-jet production cross section in pp collisions at a center-ofmass energy of 7TeV is measured using data collected by the CMS experiment at the LHC. The cross section is presented as a function of the jet transverse momentum in the range 18 < pT < 200 GeV for several rapidity intervals. The results are also given as the ratio of the b-jet production cross section to the inclusive jet production cross section. The measurement is performed with two different analyses, which differ in their trigger selection and b-jet identification: a jet analysis that selects events with a b jet using a sample corresponding to an integrated luminosity of 34 pb -1, and a muon analysis requiring a b jet with a muon based on an integrated luminosity of 3 pb -1. In both approaches the b jets are identified by requiring a secondary vertex. The results from the two methods are in agreement with each other and with next-to-leading order calculations, as well as with predictions based on the pythia event generator
  6. Keywords:
  7. Hadron-Hadron scattering ; Classical and Quantum Gravitation, Relativity Theory ; Quantum Physics ; Elementary Particles, Quantum Field Theory ; Quantum Field Theories, String Theory
  8. Source: Journal of High Energy Physics ; Volume 2012, Issue 4 , 2012 ; 11266708 (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2FJHEP04(2012)084